KR20090011257A - Display window coating method and the device using ink-jet nozzle - Google Patents
Display window coating method and the device using ink-jet nozzle Download PDFInfo
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- KR20090011257A KR20090011257A KR1020070074664A KR20070074664A KR20090011257A KR 20090011257 A KR20090011257 A KR 20090011257A KR 1020070074664 A KR1020070074664 A KR 1020070074664A KR 20070074664 A KR20070074664 A KR 20070074664A KR 20090011257 A KR20090011257 A KR 20090011257A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1044—Apparatus or installations for supplying liquid or other fluent material to several applying apparatus or several dispensing outlets, e.g. to several extrusion nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
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Abstract
Description
본 발명은 잉크젯 분사형 디스플레이용 윈도우 코팅 및 그 장치에 관한 것으로 보다 상세하게는 휴대용 단말기 등의 커버 및 내, 외부에 장착되는 디스플레이용 윈도우로 제조되는 피도체의 양면에 서로 다른 물성을 갖거나, 원하는 위치만 선택적으로 코팅하는 잉크젯 분사형 디스플레이용 윈도우 코팅 및 그 장치에 관한 것이다. The present invention relates to a window coating for an inkjet jet display and a device therefor, and more particularly, has different physical properties on both surfaces of a cover made of a cover such as a portable terminal and a window for display mounted inside or outside. A window coating for an inkjet jet display and a device thereof for selectively coating only a position.
일반적으로 디스플레이 윈도우는 박형으로 제조되는 특성상 TV 를 비롯하여, 디지털 카메라, 노트북, 네비게이션, 휴대폰 등 화면표시장치 등에 널리 사용되고 있다. 이러한 디스플레이 윈도우는 광학특성이 다른 소재에 비해 우수한 폴리카보네이트(PC), 폴리에틸렌텔레프탈레이트(PET), 폴리메칠메타아크릴레이트(PMMA) 등이 사용되고 있다. 그러나 이러한 디스플레이용 윈도우는 주로 외부에 노출되어 있기 때문에 외부충격에 의한 스크레치에 매우 취약하다는 단점이 있어 표면경도를 높여주기 위하여 UV 경화 코팅등 하드코팅을 하게 된다. In general, display windows are widely used in display devices such as TVs, digital cameras, laptops, navigation devices, mobile phones, etc. due to their thinness. Such display windows have polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), etc., which are superior to other materials. However, since the display window is mainly exposed to the outside, it is very vulnerable to scratches caused by external impact, so that hard coating such as UV curing coating is performed to increase the surface hardness.
상기 하드코팅은 일반적인 코팅방법으로 스프레이 노즐을 이용하여 윈도우 피도체에 분사하는 스프레이 코팅방식과, 윈도우피도체를 수직으로 세워 하드 코팅액이 담겨진 용기에 디핑하는 딥코팅 방법과 피도체의 상단에서 코팅액을 흘러내리도록 하는 플로우코팅(flow Coating) 방법 및 피도체의 표면에 코팅액을 공급한 후 상기피도체가 안착된 스핀장치를 회전시켜 피도체의 표면에 균일한 코팅층을 형성시키는 스핀코팅(spin coating)방법 등이 주로 사용되고 있다. The hard coating is a general coating method using a spray nozzle spray coating method for spraying on the window subject, the vertical coating and the dip coating method of dipping in a container containing the hard coating liquid vertically and the coating liquid from the top of the subject Flow coating method to flow down and spin coating to supply a coating liquid to the surface of the subject and then rotate the spin device on which the subject is seated to form a uniform coating layer on the surface of the subject. The method is mainly used.
상기 스프레이 코팅은 분사된 코팅액이 피도체와 충돌하며 충돌 지점이외의 피도체면 또는 배면에 코팅액이 부착됨으로써 입자불량이 다량 발생되어 피도체에 원하는 품질로 코팅층을 형성하기 곤란한 문제점이 있으며, 딥코팅과 플로우 코팅의 경우 피도체의 상단부의 두께가 심하게 발생되며, 양면에 서로 다른 코팅액을 코팅할 경우 하단에서 혼합되어 사용된 코팅액을 재사용할 수 없게 되므로 코팅비용이 증가하게 되는 문제점 등이 있다. 스핀코팅의 경우 피도체의 표면을 일정하게 코팅이 가능하고 배면에 서로 다른 코팅층을 형성할 수 있으나,원하는 위치에 코팅을 하기 힘들며, 다량의 피도체를 한번에 코팅하기 힘든 문제점이 있다. The spray coating has a problem that it is difficult to form a coating layer with a desired quality by spraying the coating liquid is collided with the subject and the coating liquid is attached to the surface or the back of the other than the impact point, causing a large amount of particle defects, dip coating In the case of the flow coating and the thickness of the upper part of the subject is severely generated, when coating different coating liquids on both sides, there is a problem that the coating cost is increased because the coating liquid mixed at the bottom cannot be reused. In the case of spin coating, it is possible to uniformly coat the surface of the subject and form a different coating layer on the back side, but it is difficult to coat the desired position, and there is a problem that it is difficult to coat a large amount of the subject at once.
이에 본 발명은 디스플레이용 윈도우 피도체의 표면에 다량의 피도체를 원하는 위치에 균일한 코팅층을 형성시킬 수 있는 방법을 연구하던 중 피도체를 파렛위에 진공으로 흡착, 고정시키고 모니터링 기능을 가진 노즐헤드를 여러개 장착한 잉크젯 코터를 이용 팔렛을 직각 및 상, 하, 좌, 우로 이동시키면서 피도체의 표면에 원하는 위치에 균일하게 코팅층을 형성할 수 있고,이러한 과정을 반복 수행하여 피 도체의 양면에 코팅층을 형성시킬 수 있다는 점을 착안하여 본 발명을 완성하기에 이르렀다. Therefore, the present invention while studying a method for forming a uniform coating layer on the surface of the window window display for a desired position in the desired position in the vacuum on the pallet, the nozzle head having a monitoring function and fixed Using the inkjet coater equipped with a plurality of to move the pallet at right angles and up, down, left, right, evenly to form a coating layer on the surface of the target, and by repeating this process coating layer on both sides of the subject The present invention has been completed by focusing on the fact that it can be formed.
본 발명은 전술한 문제점을 해결하기 위해 도출된 것으로 여러 개의 노즐헤드를 장착한 잉크젯 코터를 이용하여 다량의 피도체를 한꺼번에 코팅하여 생산량을 증대할 수 있으며,원하는 위치에 선택적으로 코팅을 함으로써 코팅액의 손실을 줄일 수 있을 뿐만 아니라, 다양한 형태의 피도체를 코팅할 수 있으며,디스플레이용 윈도우로 제조되는 피도체의 양면에 코팅층이 형성된 디스플레이용 윈도우를 제공하는 것에 기술적 과제가 있다. The present invention was derived to solve the above-mentioned problems, by using a large number of nozzle heads inkjet coater coating a large amount of the coating at a time to increase the production, by selectively coating the desired position of the coating liquid In addition to reducing the loss, there is a technical problem to provide a window for the display can be coated with various types of the object, the coating layer is formed on both sides of the object to be manufactured as a window for display.
상기와 같은 목적을 달성하기 위해 본 발명의 코팅방법은 피도체가 지그에In order to achieve the above object, the coating method of the present invention is a subject to a jig
안착되어 코팅부로 이송하도록 하는 투입 로보트, 일정간격으로 형성된 다수의 노즐헤드로 구성된 잉크젯 분사장치, 이송된 피도체를 분사장치를 통해 코팅하는 코팅부,코팅된 도포층을 건조, 경화시키는 건조 및 경화장치, 경화된 피도체를 배출시키는 배출로 보트로 구성된 코팅장치가 제공된다.Input robot to be seated and transferred to the coating part, Inkjet spraying device composed of a plurality of nozzle heads formed at regular intervals, Coating portion for coating the transferred object through the spraying device, Drying and curing to dry and cure the coated coating layer Apparatus, a coating apparatus consisting of a boat with a discharge for discharging the cured object is provided.
상술한 바와 같이 본 발명에 의하면 잉크젯 분사형 디스플레이용 윈도우 코팅에 사용되는 피도체는 양면에 서로 다른 기능을 갖는 코팅층을 형성할 수 있으며, 원하는 위치에 코팅층을 형성시킴으로써 다양한 형태의 피도체를 코팅하여 코팅액을 줄일 수 있는 경제적 효과가 있다. As described above, according to the present invention, the object to be used for the window coating for the inkjet jet display can form a coating layer having different functions on both sides, and the coating liquid is coated by forming various types of the object by forming the coating layer at a desired position. There is an economic effect to reduce the.
상기 잉크젯 분사장치는 외형을 형성하는 케이스와 복수개의 노즐과 노즐을 The inkjet injection apparatus may include a case, a plurality of nozzles, and a nozzle forming an external shape.
가압하여 코팅액을 도포하도록 작동시키는 압전소자와 피도체에 코팅액을 공급하는 코팅탱크, 코팅탱크로 부터 연결도관을 통해 코팅액을 노즐로 공급하는 코팅 챔버,압전소자의 구동에 따라 노즐을 통해 코팅액이 분사되도록 구성되어 있다.A coating tank for supplying the coating liquid to the piezoelectric element and the subject to be applied by pressing the coating liquid, a coating chamber for supplying the coating liquid to the nozzle through the connecting conduit from the coating tank, and the coating liquid sprayed through the nozzle according to the driving of the piezoelectric element. It is configured to be.
바람직하게는 상기코팅부의 코팅액은 폴리우레탄계, 에폭시계, 폴리에스테르계, 아크릴계, 실리콘계의 올리고머 및 모노머, 용제, 첨가제로 구성되어있다. 상기 코팅액의 점도는 5-1000cps 의 범위에 해당되는 것이 바람직하다. 상기 이송 로보트 이전에는 피도체를 세정하는 단계가 부가적으로 들어갈 수 있다. 상기 피도체를 지그에 안착시킬 때 진공흡입방식으로 지그에 안착시킨다. 상기의 피도 체는 폴리카보네이트(PC), 폴리메칠메타아크릴레이트(PMMA), 폴리에틸렌 테레프탈레이트(PET) 등의 소재로 두께는 0.1-10mm의 것이 사용된다. 상기 코팅층의 건조공정은 열작용이 우수한 근적외선을 조사하거나, 열풍을 가하는 방식으로 하며, 경화 공정은 메탈 및 수은 등의 자외선발생경화장치를 사용한다. Preferably, the coating liquid of the coating part is composed of oligomers, monomers, solvents, and additives of polyurethane, epoxy, polyester, acrylic, and silicone. The viscosity of the coating solution is preferably in the range of 5-1000cps. Prior to the transfer robot, the step of cleaning the subject may additionally enter. When the subject is mounted on the jig, it is seated on the jig by vacuum suction method. The subject is a material such as polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), etc., and a thickness of 0.1-10 mm is used. The drying process of the coating layer is a method of irradiating near-infrared rays having excellent thermal action or applying hot air, and the curing process uses an ultraviolet light curing device such as metal and mercury.
이와 같은 구성을 갖는 디스플레이용 윈도우 코팅장치를 이용하여 본 발명에In the present invention using the window coating device for a display having such a configuration
따른 여러 형태의 피도체를 코팅하는 방법을 설명하면 다음과 같다.Referring to the method of coating the various types of subjects according to.
먼저 피도체의 표면에 존재하는 불순물을 제거하는 세척공정을 거친 피도체를 파렛에 진공압력으로 안착시킨 후 로보트 및 운송수단을 이용하여 코팅공정으로First, the subject, which has undergone the washing process to remove impurities present on the surface of the subject, is placed on the pallet under vacuum pressure, and then the coating process is carried out using a robot and a transportation means.
이송한다. 상기 코팅부로 이송된 피도체는 일정한 간격으로 잉크젯 노즐헤드가 장착된 분사장치에 코팅액을 공급함과 동시에 일정두께로 원하는 위치에 코팅액을 형성시킨다. 코팅막의 두께는 피도체에 공급되는 코팅액의 점도와 노즐헤드의 분사량 에 따라 결정된다. 코팅액이 도포된 피도체는 로보트에 의해 건조부로 이송시켜 열풍건조 및 적외선 건조를 거쳐 자외선 경화시켜 코팅층을 경화시킨다. 상기열풍 및 적외선 경화온도는 40-90℃의 온도범위가 좋고 자외선 경화의자외선 광량의 세기는800-2000 mJ/㎠ 이 좋다. 그 다음 상기 코팅층이 형성된 피도체는 컨베이어 벨트 등의 운송수단에 의해 전환부로 이송되어 코팅층이 형성된 피도체면 즉, 전면과 코팅층이 형성되지 않은 피도체면 즉, 후면의 위치를 서로 전환한다. 상기 전, 후면의 위치가 전환된 피도체는 다시 컨베이어 벨트 등의 운송수단에 의해 코팅부로 이송되어 전술한 코팅 및 건조단계를 반복수행 함으로써 양면에 코팅층이 형성된 피도체를 제조한다. Transfer. The object transferred to the coating unit forms a coating liquid at a desired thickness at a predetermined thickness while supplying the coating liquid to a spraying device equipped with an inkjet nozzle head at regular intervals. The thickness of the coating film is determined by the viscosity of the coating liquid supplied to the subject and the injection amount of the nozzle head. The coated object is coated with a coating material is transferred to a drying part by a robot, followed by hot air drying and infrared drying to cure UV to cure the coating layer. The hot air and infrared curing temperature is good in the temperature range of 40-90 ℃ and the intensity of ultraviolet light of ultraviolet curing is good 800-2000 mJ / ㎠. Then, the coating layer formed with the coating layer is transferred to the switching unit by a transport means such as a conveyor belt to switch the position of the surface of the surface on which the coating layer is formed, that is, the front surface and the surface on which the coating layer is not formed, that is, the rear surface. The front and rear surfaces of the object is switched back to the coating unit by a conveying means such as a conveyor belt to perform the above-described coating and drying steps to produce a coating layer formed on both sides.
본 발명에 따른 디스플레이용 윈도우를 잉크젯 코터로 하드 코팅 하는 방법 및 그 장치는 피도체의 양면에 서로 다른 기능을 갖는 코팅층을 형성할 수 있으며, 원하는 위치에 코팅층을 형성시킴으로써 다양한 형태의 피도체를 코팅하여 코팅액을 줄일 수 있는 경제적 효과가 있어, 기존의 TV, 디지털 카메라, 노트북, 네비게이션, 휴대폰 등의 디스플레이 윈도우에 행해졌던 코팅 방식을 대체할 수 있을 것이라 기대된다. The method and apparatus for hard-coating a display window according to the present invention with an inkjet coater may form coating layers having different functions on both sides of a subject, and form a coating layer at desired positions to coat various types of subjects. Therefore, it is expected to be able to replace the coating method that has been performed on display windows of conventional TVs, digital cameras, notebooks, navigation, mobile phones, etc. because of the economic effect of reducing the coating liquid.
도 1은 본 발명의 잉크젯 디스플레이용 윈도우 코팅장치의 모식도이다. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the window coating apparatus for inkjet displays of this invention.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070074664A KR20090011257A (en) | 2007-07-25 | 2007-07-25 | Display window coating method and the device using ink-jet nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070074664A KR20090011257A (en) | 2007-07-25 | 2007-07-25 | Display window coating method and the device using ink-jet nozzle |
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| Publication Number | Publication Date |
|---|---|
| KR20090011257A true KR20090011257A (en) | 2009-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020070074664A KR20090011257A (en) | 2007-07-25 | 2007-07-25 | Display window coating method and the device using ink-jet nozzle |
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| Country | Link |
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| KR (1) | KR20090011257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101308997B1 (en) * | 2011-10-25 | 2013-09-16 | 윤재호 | 3-dimensional inkjet coating equipment and coating using thereof |
| KR102154571B1 (en) * | 2020-04-06 | 2020-09-10 | 박능출 | Automatic coating apparatus for reduce sprayed coating liquid |
-
2007
- 2007-07-25 KR KR1020070074664A patent/KR20090011257A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101308997B1 (en) * | 2011-10-25 | 2013-09-16 | 윤재호 | 3-dimensional inkjet coating equipment and coating using thereof |
| KR102154571B1 (en) * | 2020-04-06 | 2020-09-10 | 박능출 | Automatic coating apparatus for reduce sprayed coating liquid |
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